So i have one of those "tools" he had that is shown in the backround of two of these pics , picked it up a few years back at a second hand store because it looked creepy. Not saying it's the same exact one .Photos from a Spanish-language website called "Escrito con Sangre...El Website de Los Asesinos!" (Written in Blood...The Website of the Killers!). The url is: Escrito con Sangre... ¡El Website de los Asesinos!.
I don't know why but for some reason the Spanish-language sites always seem to have pictures I've never seen before, such as a lot of these. Unfortunately most of them are poor resolution but, for what it's worth, here they are:
Does anyone know what it's actually used for ?